Korean Journal of Agricultural Science (농업과학연구)
- Volume 34 Issue 2
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- Pages.135-142
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- 2007
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- 2466-2402(pISSN)
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- 2466-2410(eISSN)
Effect of Bromelain and Zn-Methionine on Milk Yield and Somatic Cell Counts of Dairy Cows
Bromelain과 Zn-Methionine 혼합 급여가 젖소의 산유량 및 체세포수에 미치는 영향
- Jeong, Yu-Jin (Division of Animal Science and Resources, College of Agriculture and Life Sciences, Chungnam National University) ;
- Kim, Yong-Kook (Division of Animal Science and Resources, College of Agriculture and Life Sciences, Chungnam National University)
- Published : 2007.12.31
Abstract
Holstein cows(n=8) were assigned to control diet(n=4) and treatment diet(n=4) containing products of Bromelain(50g/kg) and Zn-methionine (133g/kg). Basal diet was mixed as total mixed rations with 60% concentrate and 40% roughage(rice straw) and fed for 8 weeks. The milk production, somatic cell counts in milk were measured and determined. The results were summarized as follow. Average milk production was higher for cows fed treatment diet(30.2kg/d) than cows fed control diet(29.6kg/d) (P<0.05). The somatic cell counts was significantly lower for cows fed treatment diet (
본 실험은 사료 첨가제로써 Bromelain과 Zn-methionine의 급여가 착유우의 산유량 및 체세포 수 함량에 미치는 영향을 규명하고자 실시하였다. 홀스타인 착유우 8두(대조구 4두 및 처리구 4두)를 공시하여 대조구는 기본 사료를 급여하고 처리구에서는 Zn-methionine 133g/kg(Zn 20 및 methionine 46.7g)과 bromelain 50g/kg(br 30g/kg)을 경구투여하였다. 그리고 시험은 착유우의 비유초기에 8주간 실시하였다. 본 시험에서 얻은 결과는 다음과 같다. 두당 평균 유량은 대조구(29.6kg)에 비하여 처리구(30.2kg)에서 높게 나타났다(P<0.05). 우유내 체세포수는 대조구(